CN104492286A - Preparation and application of support layer functionalized adsorption-enhanced type composite ultrafiltration membrane - Google Patents
Preparation and application of support layer functionalized adsorption-enhanced type composite ultrafiltration membrane Download PDFInfo
- Publication number
- CN104492286A CN104492286A CN201410814513.6A CN201410814513A CN104492286A CN 104492286 A CN104492286 A CN 104492286A CN 201410814513 A CN201410814513 A CN 201410814513A CN 104492286 A CN104492286 A CN 104492286A
- Authority
- CN
- China
- Prior art keywords
- woven fabrics
- membrane
- functionalization
- supporting layer
- hyperfiltration membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a composite ultrafiltration membrane with excellent filtering property and adsorbing property, which is prepared by using a functionalized non-woven fabric as a support layer of a compound filtration membrane, wherein the functionalized non-woven fabric with different hydrophilic and hydrophobic groups is prepared by using an ultraviolet radiation technology. In a filtering process, the composite membrane integrates a filtering function of the ultrafiltration membrane and an adsorbing function of the functionalized non-woven fabric into a whole. A preparation method comprises the following steps: grafting hydrophilic and hydrophobic monomers with different polarities on the non-woven fabric by using the ultraviolet radiation technology to prepare a functionalized non-woven fabric support layer with different hydrophilic and hydrophobic groups, and scraping the melted casting solution on the non-woven fabric support layer by using a quick separating membrane forming technology to prepare the composite ultrafiltration membrane with excellent mechanical property and good separating property. The composite ultrafiltration membrane can be used in multiple fields such as sewage treatment and deep treatment of tap water. Tests prove that the mechanical property of the composite membrane is remarkably superior to that of an ultrafiltration membrane without a support layer, the breaking force is increased to 75.3MPa from 24.3MPa, and the removal rate of an endocrine disrupter in water is increased to 85.5 percent from 26.2 percent.
Description
Technical field
The invention belongs to film preparation and application, be specifically related to the Compound Ultrafiltration film method of the monomer modified non-woven fabrics of a kind of ultraviolet irradiation grafting functional for the preparation of film supporting layer.The present invention selects the function monomer modification nonwoven cloth supporting layer of opposed polarity, impart the hydrophobe character that material surface is different, for the supporting layer of composite hyperfiltration membrane, prepare one and there is excellent mechanical property, simultaneously by composite hyperfiltration membrane that the suction-operated of non-woven fabrics and the filtration of film are rolled into one.Usage range of the present invention is wide, can be used for the advanced treating etc. of sewage disposal and running water.
Background technology
Ultrafiltration (ultrafiltration is called for short UF) is the liquid phase sieve aperture separation process carried out under the effect of differential static pressure motive force.The fenestra of definite shape and size is there is in Ultra filtration membrane layer, under the promotion of certain pressure, in material liquid, solvent and little solute particles arrive low-pressure side from the feed liquid side of high pressure through fenestra, be commonly referred to as permeate, and macroparticle component tunicle stops, increase in high-pressure side concentration, thus reach object [the Membrane technology:Developments inultrafiltration technologies.Filtration+Separation of separation and purification product, 2012,49:28-33].As a kind of new separation technology, in ultrafiltration membrane material, application has PS membrane more widely, the more material such as polyvinylidene fluoride film, but in the process used, find that the separation of milipore filter is limited, particularly in sewage disposal, in the advanced treating of running water, for some relatively small molecular weight, diameter is helpless much smaller than the polluter of fenestra, in water treatment procedure, usual employing coagulation add filtration treatment process or by add in water the micromolecular pollutant of charcoal absorption again by hyperfiltration treatment by activated carbon filtration [Treatment of coalgasification wastewater by membrane bioreactor hybrid powdered activated carbon (MBR-PAC) system.Chemosphere, 2014, 117:753-759] although there is good removal effect, but process is more loaded down with trivial details, step-by-step processing wastes time and energy, and easily cause granular activated carbon at film surface sediment, cause fouling membrane thus shorten service life of film.Based on current status quo, we expect to prepare a kind of structure of composite membrane that filtration and suction-operated can be rolled into one, macromolecular pollutant can not only be removed, also can have the composite hyperfiltration membrane of better removal effect to micromolecular pollutant.
In the preparation field of film, in order to strengthen the mechanical performance of membrane material, usually select suitable material as the supporting layer of film, such as non-woven fabrics supporting layer, technique and Technical comparing maturation, comparatively extensive use [Novelpolysiloxaneimide/polyetherimide/non-woven fabric composite membranes for organophilicpervaporation.Journal of Membrane Science is obtained in different field, 2014, 472:77-90] [SiO2-coated polyimidenonwoven/Nafion composite membranes for proton exchange membrane fuel cells.Journal ofMembrane Science, 2011, 367:265-272].Consider the space structure of non-woven fabrics, the lack of alignment of single fiber tow, its suction-operated develops not yet completely, due to the activation energy that polypropylene fibre surface is lower, suction-operated is more weak, in order to change the surface nature of polypropylene non-woven fabric, optimize its suction-operated, material surface will be grafted to not isoplastic acrylics function monomer by ultraviolet irradiation crosslinking technology, prepare and there is opposed polarity, the non-woven fabrics of the functionalization of different hydrophilic and hydrophobic, for the supporting layer structure of composite membrane, by testing and applying, enhance mechanical performance and the absorption property of milipore filter, successfully prepare the structure of composite membrane that filtration and suction-operated can be rolled into one, macromolecular pollutant can either be removed, also the composite hyperfiltration membrane of better removal effect can be had to micromolecular pollutant.
Summary of the invention
For the problem that milipore filter is existing in sewage disposal and running water by disposal of depth, the present invention is intended to by ultraviolet irradiation crosslinking technology, the function monomer of opposed polarity is grafted to nonwoven surface, change the surface property of nonwoven cloth material, the non-woven fabrics of functionalization is used for the supporting layer structure of composite membrane, prepares a kind of Compound Ultrafiltration membrane structure suction-operated of the filtration of film and functionalization non-woven fabrics supporting layer rolled into one.Test shows: this composite membrane is except having preferably except mechanical property, and the micro-content organism foul solution prepared by filtration experiment room, composite hyperfiltration membrane has good removal effect.The function monomer of opposed polarity is grafted on non-woven fabrics by ultraviolet irradiation crosslinking technology by this patent, prepare the functionalization nonwoven layer with opposed polarity, for the supporting construction of composite hyperfiltration membrane, successfully prepare the combined filtration milipore filter filtration of film and the suction-operated of non-woven fabrics rolled into one, obtain a kind of membrane filtration material of applied new structure widely.The concrete preparation process of the present invention is as follows:
A) non-woven fabrics selecting superfine fibre to prepare, falls the auxiliary agent added in production process, washes 3-4 time with clear water with ethanol purge, dry stand-by;
B) deionized water and ethanol is selected to make solvent, preparation mass fraction is the monomer solution of 0.5%-20%, add the polymerization inhibitor of monomer mass percentage 0.1%-5% and the sensitising agent of monomer mass percentage 0.01%-5%, mixed solution and non-woven fabrics are loaded in polybag;
C) nitrogen is filled with in the polybag containing mixed solution and non-woven fabrics and drains air, plastic bag sealing is inserted in ultraviolet initiating device, power is selected to be the uviol lamp of 50-1000W, irradiation distance is 5-50cm, exposure time is 2-30min, obtains the functionalization non-woven fabrics of different percent grafting; Make cleaning agent with ethanol, ultrasonic cleaning 2-30min, remove unreacted monomer and homopolymers, put into baking oven and fully dry stand-by;
D) with the one in DMA, DMF, oxolane or two or more mixture for solvent, preparation membrane material mass fraction is 5%-40%, and pore-foaming agent mass fraction is the casting solution of 0-20%; By uniform for 4-10g casting solution blade coating on the non-woven fabrics of functionalization, leave standstill 5-20s, put into the liquid that is separated, the liquid that is separated selects the deionized water of 20 DEG C, leave standstill 30-100min, use washed with de-ionized water 3-5 time after film forming, the absorption enhancement mode composite hyperfiltration membrane of the layer function that is supported.
Described membrane material is any one or two or more mixture in polysulfones, polyether sulfone, Kynoar.Described pore-foaming agent is any one or two or more mixture in polyethylene glycol, polyvinylpyrrolidone, polyvinyl alcohol.Described non-woven fabrics is any one or two or more mixture in polypropylene, polyethylene, polyvinyl chloride, polyester, and grammes per square metre is 10-60g/m
2, filament diameter is 1-10um.Described monomer is with hydrophilic radical acrylic compounds function monomer and the acrylic monomers with hydrophobic grouping.Described polymerization inhibitor is sodium diethyldithiocarbamate, and described sensitising agent is benzophenone.
The present invention is intended to the absorption enhancement mode composite hyperfiltration membrane preparing a kind of supporting layer functionalization.This composite hyperfiltration membrane has the mechanical property more excellent than the milipore filter without supporting layer structure, therefore range of application is wider, bearing capacity is stronger, and grafting is with the monomer of different functional groups structure, make it have the functionalized surface of opposed polarity, different hydrophilic and hydrophobic, absorption and enrichment can be realized to the material of different structure, opposed polarity in water, expand its application.Particularly in the advanced treatment process of waste water control, running water, this structure of composite membrane that the suction-operated of the filtration of film and functionalization non-woven fabrics can be rolled into one, can not only realize removing by the pollutant larger to molecule large in water, aperture, and have certain removal effect for the pollutant of water small molecular, opposed polarity.
Select the hydroxy-ethyl acrylate with different functional groups and octadecyl acrylate function monomer in the present invention, regulate the proportion of two kinds of monomers, realize the functionalization to polypropylene non-woven fabric surface.Grafting means we choose ultraviolet irradiation technology, because ultraviolet irradiation device equipment cost is low, it is little, easy to operate to take up an area, not easily cause damage to material matrix in irradiation process, therefore the present invention selects ultraviolet irradiation grafting.
In the present invention, the mechanical stretch tester that the Mechanics Performance Testing of composite membrane selects Laizhou Electron Instrument Co., Ltd. to produce is tested.In the present invention, the test of the strainability of composite membrane is all carry out in homemade film properties tester, carries out under operating pressure 0.05Mpa-0.2MPa.The incretion interferent dibutyl phthalate solution selecting laboratory to prepare is stoste, and characterized the cutoff performance of composite membrane by the concentration of testing stoste and filter liquor, operating temperature selects room temperature 20 DEG C.Also select and take from natural water in lake water as former water, preparation incretion interferent solution, contrast the filter effect of former film and composite membrane, crossed the change of total organic carbon before and after film by test stoste, qualification composite membrane integrates the Optimal performance of the structure of composite membrane of the strainability of former film and the absorption property of functional non-woven fabric.
Detailed description of the invention
Introduce specific embodiments of the invention below, but the present invention is not by the restriction of embodiment.
Case study on implementation 1.
The specification of cutting non-woven fabrics is 10cm × 10cm, and with clean water polypropylene non-woven fabric 3 times, clean impurity and the dust on additive in production process and surface, 60 DEG C of oven dryings are for subsequent use.
According to deionized water and proportion of ethanol be 4: 1 preparation monomer solutions, total liquor capacity is 100ml, and shared by two kinds of monomers, mass percent is 10%, and the mol ratio of hydroxy-ethyl acrylate and octadecyl acrylate is 10: 1, the mass fraction of polymerization inhibitor is 3 ‰, and the mass fraction of sensitising agent is 6 ‰.
Non-woven fabrics and monomer solution are loaded in Polythene Bag; non-woven fabrics to be immersed in the monomer solution prepared 6 hours, under the protection atmosphere of sufficient nitrogen, the uviol lamp choosing power 100W carries out radiation grafting; non-woven fabrics is 30cm from the distance of ultraviolet lamp tube, and exposure time is 10min.After grafting terminates, EtOH Sonicate cleaning 10min, inserts the abundant drying for standby of baking oven.Preparation mass percentage concentration is the polysulfones casting solution of 17%, and pore-foaming agent polyethylene glycol mass percentage concentration is 3%, and DMA is solvent, and at 80 DEG C, abundant melting, obtains homogeneous casting solution.
Smooth for the non-woven fabrics of functionalization is fixed on a glass, gets 4g casting solution middle on non-woven fabrics, be coated to surface uniformly with scraper, insert distilled water after leaving standstill 10s and be separated in liquid, take out after 2h, clean up rear storage stand-by.
Test the mechanical property of former film and composite membrane with mechanics tester for elongation, the fracture strength of former film is 21.4Mpa, and the fracture strength of composite membrane is 67.2Mpa.Under the pressure under 0.1Mpa, do filtration experiment, filter the dibutyl phthalate solution of 500ml deionized water preparation, the clearance of former film is 19.2%, and the clearance of composite membrane is 64.3%.Filter the dibutyl phthalate solution of 500ml Natural Water preparation, TOC (total organic carbon) clearance of former film is 45.6%, and the clearance of composite membrane is 71.3%.
Case study on implementation 2.
The specification of cutting non-woven fabrics is 10cm × 10cm, and with clean water polypropylene non-woven fabric 3 times, clean impurity and the dust on additive in production process and surface, 60 DEG C of oven dryings are for subsequent use.
According to deionized water and proportion of ethanol be 4: 1 preparation monomer solutions, total liquor capacity is 100ml, and shared by two kinds of monomers, mass percent is 10%, and the mol ratio of hydroxy-ethyl acrylate and octadecyl acrylate is 6: 5, the mass fraction of polymerization inhibitor is 3 ‰, and the mass fraction of sensitising agent is 6 ‰.
Non-woven fabrics and monomer solution are loaded in Polythene Bag; non-woven fabrics to be immersed in the monomer solution that step 2 prepares 6 hours; under the protection atmosphere of sufficient nitrogen; choosing power is that the high energy ultraviolet lamp of 100W carries out radiation grafting; non-woven fabrics is 30cm from the distance of ultraviolet lamp tube, and exposure time is 20min.After grafting terminates, EtOH Sonicate cleaning 10min, inserts the abundant drying for standby of baking oven.
Preparation mass percentage concentration is the polysulfones casting solution of 17%, and pore-foaming agent mass percentage concentration is 3%, and DMA is solvent, and at 80 DEG C, abundant melting, obtains homogeneous casting solution.
Smooth for the non-woven fabrics of functionalization is fixed on a glass, gets 4g casting solution middle on non-woven fabrics, be coated to surface uniformly with scraper, insert distilled water after leaving standstill 10s and be separated in liquid, take out after 2h, clean up rear storage stand-by.
Test the mechanical property of former film and composite membrane with mechanics tester for elongation, the fracture strength of former film is 21.4Mpa, and the fracture strength of composite membrane is 60.2Mpa.Under the pressure under 0.1Mpa, do filtration experiment, filter the dibutyl phthalate solution of 500ml deionized water preparation, the clearance of former film is 19.2%, and the clearance of composite membrane is 60.5%.Filter the dibutyl phthalate solution of 500ml Natural Water preparation, TOC (total organic carbon) clearance of former film is 45.6%, and the clearance of composite membrane is 76.3%.
Case study on implementation 3.
The specification of cutting non-woven fabrics is 10cm × 10cm, and with clean water polypropylene non-woven fabric 3 times, clean impurity and the dust on additive in production process and surface, 60 DEG C of oven dryings are for subsequent use.
According to deionized water and proportion of ethanol be 4: 1 preparation monomer solutions, total liquor capacity is 100ml, and shared by two kinds of monomers, mass percent is 15%, and the mol ratio of hydroxy-ethyl acrylate and octadecyl acrylate is 6: 5, the mass fraction of polymerization inhibitor is 5 ‰, and the mass fraction of sensitising agent is 8 ‰.
Non-woven fabrics and monomer solution are loaded in Polythene Bag; non-woven fabrics to be immersed in the monomer solution prepared 6 hours, under the protection atmosphere of sufficient nitrogen, choosing power is that the high energy ultraviolet lamp of 200W carries out radiation grafting; non-woven fabrics is 30cm from the distance of ultraviolet lamp tube, and exposure time is 20min.After grafting terminates, remove non-woven fabrics EtOH Sonicate and clean 10min, insert the abundant drying for standby of baking oven.
Preparation mass percentage concentration is the polysulfones casting solution of 20%, and pore-foaming agent mass percentage concentration is 3%, and DMA is solvent, and at 80 DEG C, abundant melting, obtains homogeneous casting solution.
Smooth for the non-woven fabrics of functionalization is fixed on a glass, gets 5g casting solution middle on non-woven fabrics, be coated to surface uniformly with scraper, insert distilled water after leaving standstill 10s and be separated in liquid, take out after 2h, clean up rear storage stand-by.
Test the mechanical property of former film and composite membrane with mechanics tester for elongation, the fracture strength of former film is 21.4Mpa, and the fracture strength of composite membrane is 72.4Mpa.Under the pressure under 0.1Mpa, do filtration experiment, filter the dibutyl phthalate solution of 500ml deionized water preparation, the clearance of former film is 19.2%, and the clearance of composite membrane is 84.5%.Filter the dibutyl phthalate solution of 500ml Natural Water preparation, TOC (total organic carbon) clearance of former film is 25.6%, and the clearance of composite membrane is 81.3%.
Case study on implementation 4.
The specification of cutting non-woven fabrics is 10cm × 10cm, and with clean water polypropylene non-woven fabric 3 times, clean impurity and the dust on additive in production process and surface, 60 DEG C of oven dryings are for subsequent use.
According to deionized water and proportion of ethanol be 4: 1 preparation monomer solutions, total liquor capacity is 100ml, and shared by two kinds of monomers, mass percent is 20%, and the mol ratio of hydroxy-ethyl acrylate and octadecyl acrylate is 1: 10, the mass fraction of polymerization inhibitor is 5 ‰, and the mass fraction of sensitising agent is 8 ‰.
Non-woven fabrics and monomer solution are loaded in Polythene Bag; non-woven fabrics to be immersed in the monomer solution prepared 6 hours, under the protection atmosphere of sufficient nitrogen, choosing power is that the high energy ultraviolet lamp of 500W carries out radiation grafting; non-woven fabrics is 30cm from the distance of ultraviolet lamp tube, and exposure time is 10min.After grafting terminates, clean 10min with EtOH Sonicate, insert the abundant drying for standby of baking oven.
Preparation mass percentage concentration is the polysulfones casting solution of 20%, and pore-foaming agent mass percentage concentration is 3%, and DMA is solvent, and at 80 DEG C, abundant melting, obtains homogeneous casting solution.
Smooth for the non-woven fabrics of functionalization is fixed on a glass, gets 5g casting solution middle on non-woven fabrics, be coated to surface uniformly with scraper, insert distilled water after leaving standstill 10s and be separated in liquid, take out after 2h, clean up rear storage stand-by.
Test the mechanical property of former film and composite membrane with mechanics tester for elongation, the fracture strength of former film is 28.4Mpa, and the fracture strength of composite membrane is 82.2Mpa.Under the pressure under 0.1Mpa, do filtration experiment, filter the dibutyl phthalate solution of 500ml deionized water preparation, the clearance of former film is 26.2%, and the clearance of composite membrane is 85.8%.Filter the dibutyl phthalate solution of 500ml Natural Water preparation, TOC (total organic carbon) clearance of former film is 21.6%, and the clearance of composite membrane is 87.3%.
Case study on implementation 5.
The specification of cutting non-woven fabrics is 10cm × 10cm, and with clean water polypropylene non-woven fabric 3 times, clean impurity and the dust on additive in production process and surface, 60 DEG C of oven dryings are for subsequent use.
According to deionized water and proportion of ethanol be 4: 1 preparation monomer solutions, total liquor capacity is 100ml, and shared by two kinds of monomers, mass percent is 20%, and the mol ratio of hydroxy-ethyl acrylate and octadecyl acrylate is 1: 10, the mass fraction of polymerization inhibitor is 5 ‰, and the mass fraction of sensitising agent is 8 ‰.
Non-woven fabrics and monomer solution are loaded in Polythene Bag; non-woven fabrics to be immersed in the monomer solution that step 2 prepares 6 hours; under the protection atmosphere of sufficient nitrogen; choosing power is that the high energy ultraviolet lamp of 500W carries out radiation grafting; non-woven fabrics is 30cm from the distance of ultraviolet lamp tube, and exposure time is 30min.After grafting terminates, remove non-woven fabrics EtOH Sonicate and clean 10min, insert the abundant drying for standby of baking oven.
Preparation mass percentage concentration is the polysulfones casting solution of 20%, and pore-foaming agent mass percentage concentration is 3%, and DMA is solvent, and at 80 DEG C, abundant melting, obtains homogeneous casting solution.
Smooth for the non-woven fabrics of functionalization is fixed on a glass, gets 5g casting solution middle on non-woven fabrics, be coated to surface uniformly with scraper, insert distilled water after leaving standstill 10s and be separated in liquid, take out after 2h, clean up rear storage stand-by.
Test the mechanical property of former film and composite membrane with mechanics tester for elongation, the fracture strength of former film is 28.4Mpa, and the fracture strength of composite membrane is 85.2Mpa.Under the pressure under 0.1Mpa, do filtration experiment, filter the dibutyl phthalate solution of 500ml deionized water preparation, the clearance of former film is 26.2%, and the clearance of composite membrane is 87.8%.Filter the dibutyl phthalate solution of 500ml Natural Water preparation, TOC (total organic carbon) clearance of former film is 21.6%, and the clearance of composite membrane is 89.3%.
Claims (8)
1. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a supporting layer functionalization, it is characterized in that preparing composite hyperfiltration membrane using the non-woven fabrics of functionalization as supporting layer, the filtration of milipore filter and the suction-operated of functionalization non-woven fabrics realize simultaneously, and this synergy optimizes the removal effect to target substance; By ultraviolet irradiation crosslinking technology, the function monomer different with different functional groups, hydrophilic and hydrophobic is grafted on non-woven fabrics, the non-woven fabrics of functionalization, as the supporting layer of composite hyperfiltration membrane, except giving the absorption property of composite membrane excellence, enhances compound film strength simultaneously.
2. an application for the absorption enhancement mode composite hyperfiltration membrane of supporting layer functionalization, it is characterized in that by a kind of integrate the composite hyperfiltration membrane of the filtration of milipore filter and the suction-operated of functionalization non-woven fabrics be applied to sewage disposal, separation and purification, running water by disposal of depth.
3. a preparations and applicatio for the absorption enhancement mode composite hyperfiltration membrane of supporting layer functionalization, is characterized in that comprising the following steps:
A) non-woven fabrics selecting superfine fibre to prepare, falls the auxiliary agent added in production process, washes 3-4 time with clear water with ethanol purge, dry stand-by;
B) deionized water and ethanol is selected to make solvent, preparation mass fraction is the monomer solution of 0.5%-20%, add the polymerization inhibitor of monomer mass percentage 0.1%-5% and the sensitising agent of monomer mass percentage 0.01%-5%, mixed solution and non-woven fabrics are loaded in polybag;
C) nitrogen is filled with in the polybag containing mixed solution and non-woven fabrics and drains air, plastic bag sealing is inserted in ultraviolet initiating device, power is selected to be the uviol lamp of 50-1000W, irradiation distance is 5-50cm, exposure time is 2-30min, obtains the functionalization non-woven fabrics of different percent grafting; Make cleaning agent with ethanol, ultrasonic cleaning 2-30min, remove unreacted monomer and homopolymers, put into baking oven and fully dry stand-by;
D) with the one in DMA, DMF, oxolane or two or more mixture for solvent, preparation membrane material mass fraction is 5%-40%, and pore-foaming agent mass fraction is the casting solution of 0-20%; By uniform for 4-10g casting solution blade coating on the non-woven fabrics of functionalization, leave standstill 5-20s, put into the liquid that is separated, the liquid that is separated selects the deionized water of 20 DEG C, leave standstill 30-100min, use washed with de-ionized water 3-5 time after film forming, the absorption enhancement mode composite hyperfiltration membrane of the layer function that is supported.
4. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization as claimed in claim 3, is characterized in that described membrane material is any one or two or more mixture in polysulfones, polyether sulfone, Kynoar.
5. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization as claimed in claim 3, is characterized in that described pore-foaming agent is any one or two or more mixture in polyethylene glycol, polyvinylpyrrolidone, polyvinyl alcohol.
6. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization as claimed in claim 3, it is characterized in that described non-woven fabrics is any one or two or more mixture in polypropylene, polyethylene, polyvinyl chloride, polyester, grammes per square metre is 10-60g/m
2, filament diameter is 1-10um.
7. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization as claimed in claim 3, is characterized in that described monomer is with hydrophilic radical acrylic compounds function monomer and the acrylic monomers with hydrophobic grouping.
8. the preparations and applicatio of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization as claimed in claim 3, it is characterized in that described polymerization inhibitor is sodium diethyldithiocarbamate, described sensitising agent is benzophenone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410814513.6A CN104492286B (en) | 2014-12-19 | 2014-12-19 | The preparation of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410814513.6A CN104492286B (en) | 2014-12-19 | 2014-12-19 | The preparation of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104492286A true CN104492286A (en) | 2015-04-08 |
| CN104492286B CN104492286B (en) | 2016-10-05 |
Family
ID=52933789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410814513.6A Active CN104492286B (en) | 2014-12-19 | 2014-12-19 | The preparation of the absorption enhancement mode composite hyperfiltration membrane of a kind of supporting layer functionalization and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104492286B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289338A (en) * | 2014-07-23 | 2016-02-03 | 上海一鸣过滤技术有限公司 | Polyether sulfone/polyvinylidene fluoride blend membrane with support layer and preparation method of blend membrane |
| CN108671755A (en) * | 2018-05-16 | 2018-10-19 | 南京帝膜净水材料开发有限公司 | A kind of preparation method of complex reverse osmosis membrane |
| CN108993175A (en) * | 2018-07-29 | 2018-12-14 | 浙江理工大学 | A kind of preparation method of the super-hydrophobic filter membrane of nonwoven fabric base |
| CN109078505A (en) * | 2018-08-24 | 2018-12-25 | 杭州九龄科技有限公司 | A kind of composite chromatography filter membrane and its preparation method and application containing adsorbing medium |
| CN109403033A (en) * | 2018-11-28 | 2019-03-01 | 天津工业大学 | A kind of functionalization non-woven cloth, preparation method and its usage loading graphene |
| CN109440459A (en) * | 2018-11-28 | 2019-03-08 | 天津工业大学 | It is a kind of to load the functionalization non-woven cloth of graphene oxide, preparation method and applications |
| CN110016194A (en) * | 2019-04-16 | 2019-07-16 | 无锡纯宇环保制品有限公司 | A kind of degradable plastic bag being conducive to water body purification |
| CN110339717A (en) * | 2019-07-17 | 2019-10-18 | 安徽智泓净化科技股份有限公司 | Antibacterial reverse osmosis membrane based on viscose rayon substrate |
| NO20180619A1 (en) * | 2018-04-30 | 2019-10-31 | Sintef Tto As | Surface modified membranes |
| CN110548421A (en) * | 2019-08-27 | 2019-12-10 | 武汉艾科滤膜技术有限公司 | Preparation method and application of strong adsorption type ultrafiltration membrane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810892A (en) * | 2010-04-21 | 2010-08-25 | 中国科学院长春应用化学研究所 | Method for filtering liquid medicine and application of composite membrane in filtering liquid medicine |
| CN102587133A (en) * | 2012-01-16 | 2012-07-18 | 天津工业大学 | Preparation method of functional fiber capable of adsorbing heavy metal ions and organic pollutants at same time |
| CN102965929A (en) * | 2012-10-12 | 2013-03-13 | 苏州大学 | Preparation method and application of modified polypropylene non-woven fabric |
-
2014
- 2014-12-19 CN CN201410814513.6A patent/CN104492286B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810892A (en) * | 2010-04-21 | 2010-08-25 | 中国科学院长春应用化学研究所 | Method for filtering liquid medicine and application of composite membrane in filtering liquid medicine |
| CN102587133A (en) * | 2012-01-16 | 2012-07-18 | 天津工业大学 | Preparation method of functional fiber capable of adsorbing heavy metal ions and organic pollutants at same time |
| CN102965929A (en) * | 2012-10-12 | 2013-03-13 | 苏州大学 | Preparation method and application of modified polypropylene non-woven fabric |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289338B (en) * | 2014-07-23 | 2017-12-29 | 上海一鸣过滤技术有限公司 | Polyether sulfone/polyvinylidene fluoride blending film with supporting layer and preparation method thereof |
| CN105289338A (en) * | 2014-07-23 | 2016-02-03 | 上海一鸣过滤技术有限公司 | Polyether sulfone/polyvinylidene fluoride blend membrane with support layer and preparation method of blend membrane |
| NO20180619A1 (en) * | 2018-04-30 | 2019-10-31 | Sintef Tto As | Surface modified membranes |
| CN112368066B (en) * | 2018-04-30 | 2023-09-01 | 辛特福特图有限公司 | Carbon dioxide separation membrane having amino-containing grafted polymer surface |
| US11679356B2 (en) | 2018-04-30 | 2023-06-20 | Sintef Tto As | Surface modified membranes for gas separation, and a method for preparing thereof |
| CN112368066A (en) * | 2018-04-30 | 2021-02-12 | 辛特福特图有限公司 | Carbon dioxide separation membrane having amino group-containing graft polymer surface |
| CN108671755A (en) * | 2018-05-16 | 2018-10-19 | 南京帝膜净水材料开发有限公司 | A kind of preparation method of complex reverse osmosis membrane |
| CN108993175A (en) * | 2018-07-29 | 2018-12-14 | 浙江理工大学 | A kind of preparation method of the super-hydrophobic filter membrane of nonwoven fabric base |
| CN109078505A (en) * | 2018-08-24 | 2018-12-25 | 杭州九龄科技有限公司 | A kind of composite chromatography filter membrane and its preparation method and application containing adsorbing medium |
| CN109440459A (en) * | 2018-11-28 | 2019-03-08 | 天津工业大学 | It is a kind of to load the functionalization non-woven cloth of graphene oxide, preparation method and applications |
| CN109403033A (en) * | 2018-11-28 | 2019-03-01 | 天津工业大学 | A kind of functionalization non-woven cloth, preparation method and its usage loading graphene |
| CN110016194A (en) * | 2019-04-16 | 2019-07-16 | 无锡纯宇环保制品有限公司 | A kind of degradable plastic bag being conducive to water body purification |
| CN110339717A (en) * | 2019-07-17 | 2019-10-18 | 安徽智泓净化科技股份有限公司 | Antibacterial reverse osmosis membrane based on viscose rayon substrate |
| CN110548421A (en) * | 2019-08-27 | 2019-12-10 | 武汉艾科滤膜技术有限公司 | Preparation method and application of strong adsorption type ultrafiltration membrane |
| CN110548421B (en) * | 2019-08-27 | 2022-03-08 | 武汉艾科滤膜技术有限公司 | Preparation method and application of strong adsorption type ultrafiltration membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104492286B (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104492286A (en) | Preparation and application of support layer functionalized adsorption-enhanced type composite ultrafiltration membrane | |
| CN102965929B (en) | Preparation method and application of modified polypropylene non-woven fabric | |
| JP6697205B2 (en) | Chelate microfiltration membrane manufacturing method, recycling method and application | |
| CN104841288B (en) | One kind is used for CO2/N2Detached microgel composite membrane of gas and preparation method thereof | |
| Yu et al. | Poly (vinyl pyrrolidone) modified poly (vinylidene fluoride) ultrafiltration membrane via a two-step surface grafting for radioactive wastewater treatment | |
| JP2007289922A (en) | Inhibition-ratio improver of nano filtration membrane or reverse osmosis membrane, improvement method of inhibition-ratio, nano filtration membrane or reverse osmosis membrane, water treatment method, and water treatment apparatus | |
| CN101011644A (en) | Method for persistent hydrophilic modification of polypropylene porous membrane surface | |
| CN102068912A (en) | Method for preparing negatively charged nanofiltration membrane through grafting induced after plasma radiation | |
| CN109173737A (en) | A kind of preparation method of novel highly selective positive charged composite nanofiltration membrane | |
| CN103272502B (en) | Manufacturing method and application of electronegative composite microfiltration membrane | |
| CN104415667A (en) | Method of modifying polyolefin ultrafiltration membrane through polyaniline in-situ polymerization method | |
| CN103495348A (en) | Polyvinyl chloride hollow fiber ultrafiltration membrane and preparation method thereof | |
| CN101954251B (en) | Hydrophilic modification method for flat membrane by using hyperbranched polymer | |
| CN106110899A (en) | A kind of method preparing photosynthesis-carbon dioxide response film | |
| CN102179183A (en) | Composite membrane prepared by low-temperature plasma technology under normal pressure | |
| CN105833732A (en) | Separation membrane modified by hydrophilic antifouling gel coating and preparation method thereof | |
| CN116036883B (en) | Preparation method of fluoropolymer nanofiber-based composite nanofiltration membrane | |
| CN103611430A (en) | Production method for high-ion selectivity hollow fibrous nanofiltration membrane | |
| CN103071395A (en) | Dynamic preparation method of ultra-low pressure charge nanometer filtration membrane | |
| CN102179192A (en) | Pollution-resistant membrane for filling fluorine-containing amphiphilic surface-modification material and preparation method thereof | |
| JP3673452B2 (en) | Pollution-resistant porous filtration membrane | |
| CN109395593A (en) | A kind of preparation method of hydrophilic Pvdf Microporous Hollow Fiber Membrane | |
| CN109260964A (en) | A kind of ultra-high throughput forward osmosis membrane and preparation method thereof | |
| CN109659471B (en) | Preparation method of diaphragm and battery diaphragm | |
| CN105032213A (en) | Ultrafiltration membrane, preparation method thereof and membrane separation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |